hwmon: Add pwm-fan driver

The pwm-fan driver enables control of fans connected to PWM lines.
This driver uses the PWM framework, so it is compatible with all
PWM devices that provide drivers through the PWM framework.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
[Guenter Roeck: Last argument to devm_of_pwm_get is pointer, use NULL]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index c0aec8db462f..b93ab97732c0 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1128,6 +1128,17 @@ config SENSORS_PCF8591
 
 source drivers/hwmon/pmbus/Kconfig
 
+config SENSORS_PWM_FAN
+        tristate "PWM fan"
+        depends on PWM
+        help
+          If you say yes here you get support for fans connected to PWM lines.
+          The driver uses the generic PWM interface, thus it will work on a
+          variety of SoCs.
+
+          This driver can also be built as a module.  If so, the module
+          will be called pwm-fan.
+
 config SENSORS_SHT15
         tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
         depends on GPIOLIB